Quartzsea Acquisition Corp - QSEA
Detailed investor-level table based on 13F positions.
Methodology:
Market value and % of portfolio use SEC reported VALUE ($000).
For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received.
Details.
Rows: 0
| Investor | History | Status | Shares held | Market value ($000) | % of portfolio | Previous % | Rank | Change in shares | % change in shares | Source | Date reported |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Karpus Management, Inc. | History | Reduced | 2,263,880 | 23,159 | 0.71% | 0.73% | 1 | -12,500 | -0.55% | Q4 2025 | Feb 17, 2026 |
| MIZUHO SECURITIES USA LLC | History | Added to | 676,753 | 6,835 | 0.11% | 0.13% | 2 | +34,976 | 5.45% | Q4 2025 | Feb 09, 2026 |
| WOLVERINE ASSET MANAGEMENT LLC | History | Added to | 602,513 | 6,163 | 0.05% | 0.04% | 3 | +18,008 | 3.08% | Q4 2025 | Feb 02, 2026 |
| RIVERNORTH CAPITAL MANAGEMENT, LLC | History | Reduced | 499,756 | 5,112 | 0.24% | 0.29% | 4 | -116 | -0.02% | Q4 2025 | Feb 17, 2026 |
| MANGROVE PARTNERS IM, LLC | History | No change | 408,154 | 4,175 | 0.34% | 0.31% | 5 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| AQR Arbitrage LLC | History | No change | 369,960 | 3,792 | 0.08% | 0.1% | 6 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| Westchester Capital Management, LLC | History | No change | 366,605 | 3,757 | 0.16% | 0.17% | 7 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| Polar Asset Management Partners Inc. | History | New | 350,000 | 3,580 | 0.05% | — | 8 | +350,000 | New | Q4 2025 | Feb 17, 2026 |
| BERKLEY W R CORP | History | Added to | 317,686 | 3,249 | 0.15% | 0.17% | 9 | +29,083 | 10.08% | Q4 2025 | Feb 13, 2026 |
| TORONTO DOMINION BANK | History | Reduced | 241,975 | 2,475 | 0.0% | 0.0% | 10 | -25,000 | -9.36% | Q4 2025 | Feb 17, 2026 |
| Clear Street Group Inc. | History | No change | 181,159 | 1,884 | 0.01% | 0.01% | 11 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| Shaolin Capital Management LLC | History | Added to | 176,586 | 1,806 | 0.06% | 0.08% | 12 | +1,586 | 0.91% | Q4 2025 | Feb 17, 2026 |
| LINDEN ADVISORS LP | History | No change | 175,000 | 1,793 | 0.01% | 0.01% | 13 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| Hudson Bay Capital Management LP | History | No change | 175,000 | 1,793 | 0.01% | 0.01% | 14 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| D. E. Shaw & Co., Inc. | History | No change | 170,012 | 1,742 | 0.0% | 0.0% | 15 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| GLAZER CAPITAL, LLC | History | Reduced | 149,926 | 1,534 | 0.04% | 0.06% | 16 | -13,827 | -8.44% | Q4 2025 | Feb 13, 2026 |
| GOLDMAN SACHS GROUP INC | History | No change | 119,661 | 1,224 | 0.0% | 0.0% | 17 | 0 | 0.0% | Q4 2025 | Mar 25, 2026 |
| TWO SIGMA INVESTMENTS, LP | History | Reduced | 85,270 | 872 | 0.0% | 0.0% | 18 | -98,858 | -53.69% | Q4 2025 | Feb 17, 2026 |
| Dakota Wealth Management | History | No change | 69,500 | 710 | 0.01% | 0.01% | 19 | 0 | 0.0% | Q4 2025 | Jan 13, 2026 |
| Logan Stone Capital, LLC | History | No change | 50,053 | 512 | 0.13% | 0.23% | 20 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| Radcliffe Capital Management, L.P. | History | No change | 26,553 | 271 | 0.01% | 0.02% | 21 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| Warberg Asset Management LLC | History | No change | 24,000 | 245 | 0.03% | 0.04% | 22 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| Wellspring Financial Advisors, LLC | History | No change | 17,700 | 181 | 0.01% | 0.02% | 23 | 0 | 0.0% | Q4 2025 | Feb 11, 2026 |
| Crossingbridge Advisors, LLC | History | No change | 140,189 | 140 | 0.04% | 0.07% | 24 | 0 | 0.0% | Q4 2025 | Feb 13, 2026 |
| UBS Group AG | History | No change | 2,000 | 20 | 0.0% | 0.0% | 25 | 0 | 0.0% | Q4 2025 | Jan 29, 2026 |
| MORGAN STANLEY | History | Added to | 38 | 0 | — | — | — | +7 | 22.58% | Q4 2025 | Feb 13, 2026 |